General Information Brand Klein Tools Part Number RT390 Product Type Circuit Analyzer Application Test Wiring Faults, Inspects AFCI and GFCI Devices, Displays Line Voltage, Voltage Drop UPC 092644693632 What's Included 3 x AA Batteries, Instructions, and Pouch Packaging Retail California Residents Proposition 65 Warning Physical Characteristics Material ABS Plastic, Overmold, Electronic Components Length 1.5'' (17.9 cm) Width 2.7'' (6.9 cm) Height 7.1'' (3.9 cm) Weight 0.31 kg 0.68 lb Details Measurement Standard CAT III 135V Features Circuit Analyzer with large color LCD displays easy to understand results for wiring faults, AFCI, GFCI, voltage drops and time to trip devicesDetect and identify common wiring faults in standard, AFCI and GFCI electrical outletsDetects dual (open neutral/open ground) wiring faultsInspect AFCI and GFCI devices; includes trip time and trip current12A, 15A, and 20A load testing to measure percentage voltage dropsPowers off automatically after 5 minutes of inactivity to conserve battery lifeDetachable cord for easy storageFor use with North American 120V AC 3-wire electrical outletsSafety Rating: CAT III 135V Voltage 135V AC Batteries 3 x AAA Alkaline